1 files changed, 15 insertions, 0 deletions
diff --git a/src/vm/arm/armsinglestepper.cpp b/src/vm/arm/armsinglestepper.cpp
index bfe88244f8..525e3bcf2b 100644
--- a/src/vm/arm/armsinglestepper.cpp
+++ b/src/vm/arm/armsinglestepper.cpp
@@ -1051,6 +1051,21 @@ bool ArmSingleStepper::TryEmulate(T_CONTEXT *pCtx, WORD opcode1, WORD opcode2, b
 
             fEmulated = true;
         }
+        else if ((opcode1 & 0xff00) == 0x4400)
+        {
+            // A8.8.6 ADD (register, Thumb) : T2
+            DWORD Rm = BitExtract(opcode1, 6, 3);
+
+            // We should only emulate this instruction if Pc is used
+            if (Rm == 15)
+                fEmulated = true;
+
+            if (execute)
+            {
+                DWORD Rd = BitExtract(opcode1, 2, 0) | BitExtract(opcode1, 7, 7) << 3;
+                SetReg(pCtx, Rd, GetReg(pCtx, Rm) + GetReg(pCtx, Rd));
+            }
+        }
         else if (((opcode1 & 0xf000) == 0xd000) && ((opcode1 & 0x0f00) != 0x0e00))
         {
             // B : T1